noun 下载 🔗分享 耳机, 听筒 A transducer that converts electric signals into sound and is held near the ear, especially as part of a telephone; an earpiece or headphone. Examples : "I used an earphone to listen to music on the bus. " 我戴着耳机在公交车上听音乐。 technology electronics sound communication device machine 与AI对话词汇游戏阅读练习